EMAT ST20 366x366 1 Labtech Group - Laboratory & Process Equipment
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EMAT-probes for thicknes gauge

Electromagnetic acoustic transducer (EMAT) for EMAT Thickness Gauge NOVOTEST UT-3M-EMA are used for measuring thickness on most metals without couplant, surface preparation and even through the coating.

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Description

EMAT technologie provides many advantages over the conventional ultrasonic thickness gauges such as:

  • No couplant required
  • No surface preparation required
  • Works on uneven, convex
  • Measurement through a layer of coating (paint, plastics, oxides, etc) up to 6 mm / 0.24 in.
  • Measurement through air gap up to 6 mm / 0.24 in
  • Measurement through rusty and dusty layers

For surfaces heated to high temperatures, there is a special high-temperature version of the probe, which allows testing of products heated up to 600°C.

EMAT
Advantages

Advantages

  • Durable and robust
  • No couplant required
  • Wide measurement range – 0.8-300 mm for steel
  • Through coating measurement up to 6mm or air gap of up to 6mm (under certain conditions)
  • Works on uneven, convex and unprepared metal
  • Compatible with (B-scan) scanning trolley for EMAT-ST20
Specifications

Specifications

Transducer type EMAT
Compatible NOVOTEST UT-3M-EMA
Measurement range (for steel) [1] 0.5 – 300 mm or more /

0.019 – 11.811 in. or more
Accuracy [2] ± (0.01 h + 0.05) mm /
± (0.01 h + 0.0019) inchwhere: h – nominal thickness
Type of generated wave Shear wave
Velocity for steel ~3240 m/s
Lift-off / through-coating thickness[3] 6 mm
Frequency 3,3 MHz
Effective aperture diameter ??
Minimal sample diameter 15 mm
Testing materials F (Steel) and NF (Aluminum, Stainless Steel, etc) metals
Probe inclination 20° deg
Dust and moisture protection IP53 (optionally up to IP68)
Cable type (separate) 2Lemo00 – 2Lemo00
Cable length 1,2 m
Overall dimensions Ø25×45 mm
Weight 0,1 kg

[1] Measurement range depends on material, curvature, coating/air gap thickness, coating material, presence of dust/rust layer and probe type

[2] Relevant at least for range 0.5-300 mm / 0.019 – 11.811 in

[3] Coating/air gap thickness range depends on material, thickness, curvature, coating material, presence of dust/ rust layer and probe type

Available options

Available options

  • Different cable length (1.8m, 2m, 3m etc.)
  • (B-scan) scanning trolley for EMAT-ST20
  • Calibration certificate issued by the third-party metrology laboratory (ILAC)
  • Certificate of origin issued by the Chamber of Commerce and Industry
  • Extended warranty period up to 3 years
  • Individual modification to customer requirements
Standard package

Standard package

  • Probe with cable
  • Test certificate
  • Transportation package
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